<?php
/**
 * Smarty plugin
 * @package Smarty
 * @subpackage plugins
 */

/**
 * load a resource plugin
 *
 * @param string $type
 */

// $type

function smarty_core_load_resource_plugin($params, &$smarty) {
    /*
     * Resource plugins are not quite like the other ones, so they are
     * handled differently. The first element of plugin info is the array of
     * functions provided by the plugin, the second one indicates whether
     * all of them exist or not.
     */

  $_plugin = &$smarty->_plugins['resource'][$params['type']];
  if (isset($_plugin)) {
    if (!$_plugin[1] && count($_plugin[0])) {
      $_plugin[1] = true;
      foreach ($_plugin[0] as $_plugin_func) {
        if (!is_callable($_plugin_func)) {
          $_plugin[1] = false;
          break;
        }
      }
    }

    if (!$_plugin[1]) {
      $smarty->_trigger_fatal_error("[plugin] resource '" . $params['type'] . "' is not implemented", null, null, __FILE__, __LINE__);
    }

    return;
  }

  $_plugin_file = $smarty->_get_plugin_filepath('resource', $params['type']);
  $_found = ($_plugin_file != false);

  if ($_found) {            /*
         * If the plugin file is found, it -must- provide the properly named
         * plugin functions.
         */
    include_once($_plugin_file);

        /*
         * Locate functions that we require the plugin to provide.
         */
    $_resource_ops = array('source', 'timestamp', 'secure', 'trusted');
    $_resource_funcs = array();
    foreach ($_resource_ops as $_op) {
      $_plugin_func = 'smarty_resource_' . $params['type'] . '_' . $_op;
      if (!function_exists($_plugin_func)) {
        $smarty->_trigger_fatal_error("[plugin] function $_plugin_func() not found in $_plugin_file", null, null, __FILE__, __LINE__);
        return;
      } else {
        $_resource_funcs[] = $_plugin_func;
      }
    }

    $smarty->_plugins['resource'][$params['type']] = array($_resource_funcs, true);
  }
}

/* vim: set expandtab: */

?>
